Home / 7,211-9,953.20-4,825.56

Finding the Fourth Proportional to 7,211, 9,953.20 and 4,825.56

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Solution

The fourth proportional to 7,211, 9,953.20 and 4,825.56 is: 6,660.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,211 : 9,953.20 = 4,825.56 : x
  2. Step 2: Convert to fraction form
    7,211/9,953.20 = 4,825.56/x
  3. Step 3: Cross multiply
    7,211x = 9,953.20 × 4,825.56
  4. Step 4: Simplify right side
    7,211x = 48,029,763.79
  5. Step 5: Solve for x
    x = 48,029,763.79/7,211
  6. Step 6: Final answer
    x = 6,660.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.